摘要
目的探讨评估县级疾控机构碘盐检测质量的方法,评估其检测结果的可靠性。方法以四川省泸州市7个县区为研究对象,以省级疾控机构碘盐检测结果为参照标准建立评价方法,对其2009年碘盐检测进行质量评估。样品采集用分层随机抽样;样品检测用仲裁法,分别由省、县两级疾控机构对同一盐样进行同步检测;采用统计描述和统计检验方法对县级疾控机构碘盐检测质量进行比较评估。结果县级疾控机构碘盐检测结果与省级疾控机构检测结果的符合率介于17%～67%,平均为39%;相对误差<5%的比例介于6%～40%之间,平均为21%。结论以省级疾控机构碘盐检测结果为参照标准建立评价方法仅具有一定合理性,如何建立起具有较好效度和信度的碘盐检测质量评估方法还需要作进一步的研究和探讨。
Objective To explore the method to evaluate the quality of iodized salt testing in county-level centesr for disease of control and prevention（CDC）,and evaluate the reliability of its results.Methods Seven counties in Luzhou in Sichuan province were selected as the research objects.Evaluation methods were developed according to the provincial CDC test results of iodized salt as a reference standard.Samples were collected by using stratified random sampling and detected by using Arbitration Law.The provincial and county CDC conducted synchronous detection on same salt samples.The iodized salt quality testing results was comparatively evaluated by using statistical description and statistical tests.Results The coincidence rate of the testing results compared with province＇s results were 17%-67%,39% in average,and the datum less than 5% of relative error was just 6%-40%,21% in average.Conclusion There is only certain rationality by means of quality evaluation on iodized salt testing results from county-level CDCs on the basis of province-level testing results,therefore,further research is needed in the future.
出处
《预防医学情报杂志》
CAS
2012年第1期52-56,共5页
Journal of Preventive Medicine Information
关键词
碘盐检测
方法
质量评估
符合率
salt test
method
quality evaluation
coincidence
